CHAND, PREMSINGH, DEVI DAYAL2023-04-052023-04-051988https://krishikosh.egranth.ac.in/handle/1/5810196096EVALUATION OF INDIGENOUS MATERIALS AS PROTECTANTS OF PIGEON PEA AGAINST PULSE BEETLEA potted plant experiment was conducted in soils. collected from eighteen different locations of Ranchi district of Bihar using moong as a test crop to study (1) the response of legumes to P application (11) the suitability of different chemical extract ants for prediction of P requirements of legumes. Results indicated significant response of moong crop to fertilizer phosphorus. Higher response was observed at higher dose of phosphorus (60 ppm P) in comparison to a lower dose (30 ppm P). Correlation coefficients were worked out between available P determined by different chemical extract ants and dry matter yield as well as P uptake. The Olsen and Bray P₁ extract ants were found to be superior to other extract ants. Results also indicated that available phosphorus in these soils increased with a rise in soil pH and organic carbon content. Correlation study between inorganic P fractions and available P estimated by Olsen & Bray P, method indicated that Al-bound 1 phosphorus contributed more in P nutrition of moong followed by solid bound and Fe-bound phosphorus.EnglishThesis